Chapter Text
The world has long been plagued by vicious snarling beasts known as demons. Tearing apart families, traumatizing children, and spilling the blood of innocents. That is why I dedicated my life to the Demon Slayer Corps.
7 years ago, in a small humble village, I lived happily with my 2 sisters and our mother. Until that night came. Visions of ice advancing on our house and icicles sharp enough to filet skin flash in my mind. Even after 6 years in the Demon Slayer Corps, the demon from that night was the most excruciatingly heavy presence I have ever felt. My sisters were slaughtered and my mother’s brain is too far gone to function.
My family was stolen from me and I plan to avenge the life I could’ve had.
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On my way to get medicine for my mental troubles from Shinobu, my mind wandered to one of the conversations we had a few years ago. On the cozy patio of her large mansion, we were sitting silently until she took my hand.
“My dearest Y/N, I’ve wanted to tell you something for a while now. Something I feel I should tell you about your past that might enlighten you about your goals.” I looked up into her shining purple eyes and nodded. “Please, go on. I’m ready now Shinobu.”
She took a deep breath and continued. “The demon.. the one that hurt you. I..think it was the same one that killed my sister.”
I clamped down on my quivering lips and looked away, wincing. How many has this monster killed? How dare he still live while our families were not?
“Y/n. Y/n? “
“Y/N??”
I looked up from my feet to find Shinobu touching my shoulder lightly. It seemed I walked all the way to her door and she found me standing here.
I smiled scratching the back of my neck nervously.
“Hey! Sorry about that, I must’ve spaced out again.” She gave me a calm calculating stare, until she finally returned my smile with her usual pretty one.
She invited me in and led me to her office. The office was covered with potted plants and herbs, the soothing smell of wisteria and mint filling my nostrils. As soon as the door shut, she let her mask down as she always does with me. The forced smile was gone, replaced by a straight mouth and rose tinted cheeks.
She retrieved my mixture and placed it in the pocket of my uniform. Just as quickly as she dropped it, her arms came snaking around my waist. She let her cheek rest lightly against my back, breathing a sigh of relief.
“You know Y/N, I feel so safe with you.”
I placed my hands on hers as I felt my heart melting at her touch. She had no idea how important she was to me. I turned around and embraced her fully, wrapping my arms around her neck.
After a few minutes of standing like that, I reached up to the back of her head and undid her bun. Her hair fell in curtains around her. I couldn’t help but think one word. Beautiful.
The air shifted around us. Was the room getting hotter? I pulled away and looked at Shinobu. I loved when she gave me a part of herself that no one else has seen. She looked at my lips and back at my eyes. This wasn’t anything sweet anymore. Shinobu’s true self never has been. Underneath the surface, she is cold, calculating, and angry. I find it to be the most intensely attractive thing I’ve ever seen.
Before I could even part my lips fully, hers were crashing into mine. I groaned into her mouth. Everything was already so heavy and aching. Shinobu pushed me onto the desk and pulled away. Her stare was nothing but brutal as she slowly surveyed me from my feet all the way to my face. Her arms were on either side of me on the desk. She was above me panting, the veins in her face and hands protruding.
Everyone in the corps knows her to never show any emotion other than calm positivity. This was so different.
Her hand went between my parted legs and caressed from between my legs to my chest. Then she slammed me down on the desk. My head would’ve cracked if i wasn’t far enough away from the edge.
She ripped open each button of my uniform and started to run her hands over my lace bra. She grabbed my nipples and squeezed them to the point of pain between her fingers. I threw my head back and ground my hips into the air in desperation. She cruelly laughed at my neediness. “ Gods you’re such a slut for me Y/N. Look how pathetic you look writhing under me like this, just aching for me to rub you. To put my mouth… here” She said as she kissed down my neck. “Or maybe… here?” and ground her knuckles straight into my clit. I was so needy at this point that I started to play with my own nipples and humped against her forearm greedily.
Every collision between my heat and her arm caused her eyes to get darker with lust. I moaned over and over, wetness starting to pool through my uniform pants. My head snapped to the side, halting my movement. My cheek stung where Shinobu slapped me. “You’re no better than a dog rutting in heat. My little bitch. You want it that bad?” she said, unzipping my pants. “You want me to make you come? Make you scream my name until everyone in the mansion hears you?”. Shinobu was pushing my pants and my underwear off together now. “You want everyone to know what a dirty fucking whore you are?”.
I looked at her and grabbed her wrist. “Shinobu I need you. I need you to fuck me until I can’t see or walk straight. Ruin every part of me.”.
Without another word, she plunged two fingers into me. She pounded me relentlessly, making the most erotic squelching noises. Her name was a prayer on my lips, repeated over and over. Shinobu grabbed my chin and made me look at her. “Are you gonna come Y/N? I can feel you clenching around my fingers.”
I put my lips around her fingers and sucked. “Mmm”. She sighed and shoved her fingers to the back of my throat, never slowing her ruthless thrusts. She made me come so hard, I nearly blacked out riding it out on her long fingers.
She removed both hands and grabbed the back of my neck to pull me close. Shinobu kissed me thoroughly, forcefully shoving her entire tongue into my mouth.
I gently pushed her away and caressed her sides. All she responded with was a cold smile. She gripped my hair and yanked me off the desk, causing me to fall on my knees before her. My knees stung from hitting the ground, makeup running down my face.
“Aw~ poor thing. Look at you. So helpless. Does it hurt Y/N?”. She rubbed my face and smeared my makeup. “You’re so pretty when you’re groveling.”
Shinobu kicked off her shoes. Slowly unzipped her pants. Soon, she walked around the desk to her chair completely exposed to me. She sat down, spread her legs, and looked at me. “Crawl to me, little butterfly.”.
And so I did.
She rubbed herself right in front of my face, moaning and fucking herself with her fingers. After reaching down and grabbing the medicine out of the pocket of my discarded pants, Shinobu rested each of her feet on the arms of the chair, spreading herself even wider. “Eat my cunt like it’s the last meal you’ll ever have. Like you’ve been starving for weeks.”.
With that, she popped open the bottle and poured the contents all over herself. My eyes widened with surprise. I swallowed nervously. Did she really mean for me to take my medicine this way?
I must’ve stalled for too long, because she grabbed my head and forced my mouth on her.
Shinobu tasted like heaven and wisteria.
She gripped my hair tighter and started grinding her hips into my face, selfishly using me to pleasure herself. “Your mouth feels- so damn good Y/N” she said between pants. “Let me be the remedy for your pain, let me be your medicine.”.
I showed her that she already was and more that night.